[go: up one dir, main page]

WO2018065467A1 - Raccordement destiné à un système modulaire de purification de fluide en écoulement et procédé - Google Patents

Raccordement destiné à un système modulaire de purification de fluide en écoulement et procédé Download PDF

Info

Publication number
WO2018065467A1
WO2018065467A1 PCT/EP2017/075223 EP2017075223W WO2018065467A1 WO 2018065467 A1 WO2018065467 A1 WO 2018065467A1 EP 2017075223 W EP2017075223 W EP 2017075223W WO 2018065467 A1 WO2018065467 A1 WO 2018065467A1
Authority
WO
WIPO (PCT)
Prior art keywords
interconnection
radiation
port
channel
ports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/075223
Other languages
English (en)
Inventor
Merlijn Antonius Petrus Maria JANSSEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signify Holding BV
Original Assignee
Philips Lighting Holding BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Lighting Holding BV filed Critical Philips Lighting Holding BV
Publication of WO2018065467A1 publication Critical patent/WO2018065467A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/004—Seals, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/007—Modular design
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3221—Lamps suspended above a water surface or pipe
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3222—Units using UV-light emitting diodes [LED]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3227—Units with two or more lamps

Definitions

  • This invention relates to the field of in- flow fluid disinfection, and more specifically to ultraviolet (UV) fluid disinfection, for example using UV-C radiation.
  • UV ultraviolet
  • Fluid disinfection to obtain a fluid that contains fewer harmful bacteria is widely regarded as an important process. This becomes even more prescient when the fluid in question is, for example, water that is being prepared for human or animal consumption.
  • UV radiation was first used for the purpose of fluid disinfection on an industrial scale in the 1980's; it has numerous advantages over other methods such as chlorination, especially when the fluid is water that is to be consumed. UV radiation is also widely known for use in the disinfection other fluids such as air.
  • UV radiation does not affect the PH, composition, taste or odor of the fluid that has been disinfected.
  • the disinfection of the fluid is achieved by deactivating the bacteria, viruses and microbes by altering their DNA through UV radiation exposure. Further advantages of the use of UV to disinfect fluids are simple installation, less maintenance requirements and space efficiency.
  • UV to treat a fluid eliminates the need to use a chemical process thus removing the risk of a chemical smell or taste in the fluid after disinfection has been completed.
  • UV water disinfection technologies mainly use mercury discharge lamps to provide the UV radiation that disinfects the water.
  • these systems provide UV radiation to fluids flowing past them.
  • the level of disinfection depends on the total effective UV dose received by the fluid. The higher the dose, the higher the level of disinfection, or the lower the amount of remaining pathogens.
  • UV radiation disrupts the DNA of microbes and thereby prevents reproduction. Without reproduction, the microbes become far less of a danger to health. As such, UV radiation is a mutagen, that is to say, UV radiation creates mutations within the structure of DNA.
  • UV-C radiation in the short wavelength range of 100-280 nm, acts on thymine, one of the four base nucleotides in DNA.
  • thymine one of the four base nucleotides in DNA.
  • a photon of UV radiation is absorbed by a thymine molecule that is adjacent to another thymine within a DNA strand, a covalent bond or dimer between the molecules may be created, this is different to the normal structure of DNA wherein the bases always pair up with the same partner on the opposite strand of DNA. This causes a bulge to occur between the two bases, the bulge prevents enzymes from "reading" the DNA and copying it, thus neutering the microbe.
  • UV-C LEDs have become available. Their UV-C output power is still low compared to mercury lamps, but LEDs have the advantages of a small size and the ability to generate directional radiation.
  • UV-C radiation from a UV-C LED is coupled into a UV-C transparent tube filled with a fluid such as water, the directional radiation from the UV-C LED may propagate along the tube via total internal reflection. This allows the fluid to receive a higher effective dose of UV-C radiation, leading to a more effective use of the radiation.
  • an interconnection for a modular in-flow fluid purification system comprising:
  • a channel having a first end and a second end, wherein the second end of the channel is perpendicular to the first end with an elbow between the first and second ends;
  • a UV radiation source positioned at the elbow to allow UV radiation to enter the interconnection at the elbow directed towards the first port;
  • the first port is adapted to receive a pipe. This means that the interconnection may be used in conjunction with a pipe within a fluid purification system.
  • the UV radiation source for example comprises a UV LED arrangement.
  • the use of a UV LED arrangement allows for a more compact purifying mechanism, when compared to a purifying mechanism that requires a mercury lamp, meaning that the interconnection itself may also be compact.
  • the UV radiation source may for example produce UV-C radiation.
  • the UV radiation source is held by the interconnection. This removes the need for separate components to hold the UV radiation source in the correct position.
  • a modular in-flow fluid purification system comprising:
  • This arrangement allows the fluid to pass through multiple interconnections, which in turn provide multiple doses of UV radiation.
  • many interconnections may be used in order to provide a high effective dose ofUV radiation.
  • fewer interconnections may be used in order to provide a lower effective dose of UV radiation.
  • the pipes connected between adjacent pairs of first ports may be straight pipes.
  • Straight pipes are readily commercially available and do not require additional processing to fit into the system. Furthermore, the use of straight pipes results in a more robust system when compared to other arrangements such as bent pipes.
  • adjacent pairs of second ports may be directly connected together. This allows adjacent interconnections to occupy a minimal amount of space without requiring an additional pipe connection that does not contribute to the overall purifying process.
  • the interconnections are positioned to form a stack of pipes. This allows for multiple stages of purification to occur in succession meaning that the fluid may be purified to the required level before entering the next element of the system.
  • the stack may form a two-dimensional or three-dimensional array of pipes, so that there is an efficient use of space.
  • the pipes used in the system may be constructed from a UV transparent material, such as glass or quartz. By constructing the pipe from a UV transparent material, it is possible to achieve total internal reflection of the UV radiation within the pipe.
  • the UV radiation source may be adapted to provide directional UV radiation for travelling along the pipe via total internal reflection. This allows for the fluid to receive a longer exposure time to the UV radiation resulting in a higher level of purification to be achieved without the need for additional UV radiation sources.
  • the pipes used in the system may straight in order to provide a more robust purification system.
  • the interconnection may comprise a seal for sealing the end of the pipe.
  • the system may for example be assembled as a simple push fit or screw fit arrangement.
  • the system may comprise a water purification system, however, in other embodiments the system may comprise a purification system for another fluid, for example air.
  • a purification method for a modular in- flow fluid purification system which system comprises a plurality of interconnections connected in series, each interconnection comprising:
  • a channel having a first end and a second end, wherein the second end of the channel is perpendicular to the first end with an elbow between the first and second ends;
  • a first port at the first end of the channel; a UV radiation source positioned at the elbow to allow UV radiation to enter the interconnection at the elbow directed towards the first port; and
  • Fig. 1 shows a cross section of an interconnection
  • Fig. 2 shows a system comprising a plurality of the interconnections shown in
  • Fig. 3 shows an example embodiment of the system in Fig. 2 arranged into a two-dimensional array of pipes
  • Fig. 4 shows an example embodiment of the system in Fig. 2 arranged into a three-dimensional array of pipes
  • Fig. 5 shows an embodiment of the system in Fig. 2 adapted to allow the propagation of UV radiation along a pipe via total internal reflection
  • Fig. 6 shows a method of the invention.
  • the invention provides an interconnection for a modular in- flow fluid purification system which includes a channel with a first and second end with an elbow between the first and second end.
  • a UV radiation source is placed at the elbow to allow UV radiation to enter the interconnection.
  • Figure 1 shows an interconnection 10 which comprises a channel 12 having a first end 14 and a second end 16, wherein the second end 16 of the channel 12 is
  • a first port 18 is at the first end and a second port 19 is at the second end.
  • a UV radiation source 20 is positioned at the elbow 17 to allow UV radiation 21 to enter the interconnection at the elbow directed towards the first port 18. In other words, the UV radiation source is positioned so that once the UV radiation has entered the interconnection; it may then leave the interconnection via the first port.
  • the interconnection is designed to allow fluid to flow along the channel 12 between the first port 18 and the second port 19.
  • the interconnection is adapted to allow UV radiation to enter the interconnection without hindering the flow of the fluid.
  • the interconnection is further adapted to direct the UV radiation towards the first port 18 of the interconnection.
  • the first port 18 is adapted to receive a pipe
  • the first port 18 may be threaded in order to receive a pipe with similar threading, but in other arrangements, alternative methods for receiving a pipe may be used, for example a clamping mechanism. Both the first and second ports may be adapted to receive a pipe.
  • UV radiation 21 passes from the UV radiation source 20 into the interconnection.
  • the UV radiation may then pass through the first port 18 and into the pipe 22. It is directed parallel to the elongate axis of the pipe 22 and hence parallel to a central axis of the first port 18.
  • the UV radiation source for example comprises a UV LED arrangement, having an optical axis which is the general light output direction. This allows directional UV radiation to be introduced to the system meaning that a higher proportion of the UV radiation will travel along the pipe 22 compared to an arrangement that comprises a non-directional UV radiation source (for example a mercury lamp). This directional control for example enables total internal reflection to be used as the mechanism for transferring the light along the pipe 22.
  • the UV radiation emitted by the UV radiation source may be UV-C radiation. Thus, the UV radiation emitted by the UV radiation source may possess a wavelength in the range 100-280 nm.
  • the UV radiation source 20 may be held by the interconnection, so that an external mechanism for holding the UV radiation source in the correct place is not needed.
  • the interconnection may be used independently within a system without the constraints of an external holding mechanism. Further to this, the UV radiation source is less at risk of emitting the UV radiation in a less optimal direction if there is a predetermined holder within the interconnector.
  • the holding of the UV radiation source by the interconnection may shield the UV radiation source in some way from the surrounding environment. This shielding may prevent dust from coating the UV LED(s) over time that may reduce the overall effectiveness of the UV LED(s) by blocking the emitted UV radiation.
  • Figure 2 shows an example of a system 30 comprising a plurality of interconnections 10 as shown in Figure 1 , alternatively, it can be a single u-shaped interconnection wherein the first port and the second port are parallel with each other.
  • the interconnections are connected in series with an alternating port sequence. This means that there are adjacent pairs of first ports 18 and second ports 19, wherein a pipe 22 is connected between each adjacent pair of first ports 18.
  • the adjacent pairs of second ports 19 are directly connected together.
  • the need for an adjoining length of pipe between the two ports is eliminated. This greatly improves the efficiency of the purifying system as there is a smaller proportion of the fluid flow that is not receiving the purifying UV radiation.
  • the interconnections 10 may be positioned in the system 30 so as to form a stack of pipes 22.
  • the stack of pipes may be expanded or reduced by adding or removing interconnections. By expanding the stack of pipes, a higher effective dose of UV radiation will be introduced into the fluid, leading to a higher level of purification. Where only a low level of fluid purification is required, the stack of pipes may be reduced as a lower effective dose of UV radiation is needed.
  • This modular construction allows the same components to be used in a wide variety of different systems that require fluid purification.
  • the pipes used in the system may be any length as the interconnection's function does not depend on pipe length. Removing the need for a predetermined pipe length from the system further expands its modular capabilities.
  • the pipes used in the system may be straight pipes. Straight pipes are readily available from commercial retailers and may not require any additional processing to be implemented into the system. The use of straight pipes in the system also results in a more robust product.
  • the interconnections may be connected together and to the pipes in any rotational orientation.
  • the interconnections at the opposite ends of a pipe may be rotated relative to each other.
  • the interconnections at opposite ends of a pipe may be at 90 degrees or 180 degrees to each other.
  • two interconnections are directly connected together (at their second ports) they may have different relative angular orientations giving flexibility in the overall resulting shape.
  • a meandering block of pipes may be formed so that an array of parallel pipes is arranged within a cuboid outer volume. This provides an efficient use of space.
  • Figure 3 shows an example of the system in Figure 2, wherein the stack of pipes has been arranged into a two-dimensional array of pipes 40.
  • the two-dimensional array of pipes may be extended through the use of additional interconnections.
  • a system such as this may be used in a device that requires the purification process to occur in a thin space.
  • a 'thin' space should be understood to mean any space that is limited in size along any one of the three axes that define a three-dimensional space.
  • Figure 4 shows an example of the system in Figure 2, wherein the stack of pipes has been arranged into a three-dimensional array of pipes 50.
  • the three-dimensional array of pipes may be extended in any direction through the use of additional interconnections. This system is applicable to a wide variety of situations as the array may be altered to fit into any desired three-dimensional space.
  • Figure 5 shows an embodiment of the system shown in Figure 2, wherein the system 30 is designed to allow the UV radiation 21 to propagate along the pipe via total internal reflection 62.
  • the pipe 22 may be constructed from a UV transparent material such as glass or quartz.
  • the pipe may comprise additional materials such as a reflective material on the outer layer of the UV transparent material.
  • the UV radiation 21 may propagate along the length of the pipe 22 via total internal reflection 62. This means that the fluid flow 64 being purified is exposed to the UV radiation 21 for a longer time thereby allowing the fluid to receive a higher effective dose of UV radiation. This allows a higher level of fluid purification to be reached without the need for additional UV radiation sources, leading to lower energy consumption.
  • Figure 6 shows a method of the invention.
  • step 70 fluid is provided to a system comprising a series of interconnections.
  • the interconnections are connected in series with an alternating port sequence so as to define adjacent pairs of first ports and adjacent pairs of second ports. Pipes are connected between each pair of adjacent first ports.
  • step 72 UV radiation is provided into the fluid at each interconnection by the UV radiation source such that the UV radiation is directed towards the first port of the interconnection.
  • the UV radiation may propagate along the pipes connected between the adjacent pairs of first ports via total internal reflection.
  • the system may comprise four to twenty interconnections, wherein the first 18 and second 19 ports of the interconnections may be between 10 - 50mm in diameter.
  • the interconnections may for example be constructed from silicone.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Hydrology & Water Resources (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un raccordement destiné à un système modulaire de purification de fluide en écoulement permettant au fluide de s'écouler librement dans un canal tout en introduisant un rayonnement UV dans l'écoulement de fluide. Le raccordement comprend un canal présentant un premier orifice et un second orifice, un coude étant situé entre les premier et second orifices. La source de rayonnement UV est positionnée au niveau du coude de façon à introduire un rayonnement UV dans le raccordement, et est dirigée vers le premier orifice. Le raccordement permet la construction d'un système modulaire qui peut être modifié, par ajout ou retrait desdits raccordements, en vue d'atteindre différents niveaux de purification de fluide.
PCT/EP2017/075223 2016-10-07 2017-10-04 Raccordement destiné à un système modulaire de purification de fluide en écoulement et procédé Ceased WO2018065467A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16192866 2016-10-07
EP16192866.8 2016-10-07

Publications (1)

Publication Number Publication Date
WO2018065467A1 true WO2018065467A1 (fr) 2018-04-12

Family

ID=57113204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/075223 Ceased WO2018065467A1 (fr) 2016-10-07 2017-10-04 Raccordement destiné à un système modulaire de purification de fluide en écoulement et procédé

Country Status (1)

Country Link
WO (1) WO2018065467A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11027038B1 (en) 2020-05-22 2021-06-08 Delta T, Llc Fan for improving air quality
US11400177B2 (en) 2020-05-18 2022-08-02 Wangs Alliance Corporation Germicidal lighting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04243592A (ja) * 1991-01-23 1992-08-31 Houshin Kagaku Sangiyoushiyo:Kk 殺菌装置
US20020043504A1 (en) * 2000-09-14 2002-04-18 Jian Chen Ultraviolet water sterilization device in a modularized configuration
US20050263447A1 (en) * 2004-05-27 2005-12-01 Mcgrew Henry E Jr Wastewater treatment system
WO2015069680A1 (fr) * 2013-11-08 2015-05-14 Mag Aerospace Industries, Llc Dispositif de traitement d'eau de point d'utilisation
US20160052802A1 (en) * 2013-05-30 2016-02-25 Nikkiso Co., Ltd. Water purification apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04243592A (ja) * 1991-01-23 1992-08-31 Houshin Kagaku Sangiyoushiyo:Kk 殺菌装置
US20020043504A1 (en) * 2000-09-14 2002-04-18 Jian Chen Ultraviolet water sterilization device in a modularized configuration
US20050263447A1 (en) * 2004-05-27 2005-12-01 Mcgrew Henry E Jr Wastewater treatment system
US20160052802A1 (en) * 2013-05-30 2016-02-25 Nikkiso Co., Ltd. Water purification apparatus
WO2015069680A1 (fr) * 2013-11-08 2015-05-14 Mag Aerospace Industries, Llc Dispositif de traitement d'eau de point d'utilisation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11400177B2 (en) 2020-05-18 2022-08-02 Wangs Alliance Corporation Germicidal lighting
US11433154B2 (en) 2020-05-18 2022-09-06 Wangs Alliance Corporation Germicidal lighting
US11612670B2 (en) 2020-05-18 2023-03-28 Wangs Alliance Corporation Germicidal lighting
US11696970B2 (en) 2020-05-18 2023-07-11 Wangs Alliance Corporation Germicidal lighting
US12109338B2 (en) 2020-05-18 2024-10-08 Wangs Alliance Corporation Germicidal lighting
US11027038B1 (en) 2020-05-22 2021-06-08 Delta T, Llc Fan for improving air quality

Similar Documents

Publication Publication Date Title
CN105164056B (zh) 用于通过从发光二极管发射的光进行液体消毒的方法和装置
CN105209393B (zh) 杀菌净化反应器
US11203534B2 (en) Method, system and apparatus for treatment of fluids
US10494273B2 (en) Method and apparatus for liquid disinfection using light transparent conduit
US9168321B2 (en) Toroidal-shaped treatment device for disinfecting a fluid such as air or water
CN102989030A (zh) 用于对气体和/或液体进行灭菌的装置
US8414779B2 (en) Method and apparatus for liquid disinfection using light transparent conduit
WO2017055093A1 (fr) Système et procédé de purification de fluide entrant
KR101683351B1 (ko) 라이트 커튼형 led 광 조사기
KR102320336B1 (ko) 공기의 체류시간 연장에 의한 광조사량 증가 구조를 가지는 uv-c 공기살균장치
US20210206662A1 (en) Water sterilizing tube
WO2018065467A1 (fr) Raccordement destiné à un système modulaire de purification de fluide en écoulement et procédé
CN112624255B (zh) 采用消毒光消毒流体
CN213526528U (zh) 灭菌模组
JP2022133207A (ja) 流体殺菌装置および直管型光源
WO2017060088A1 (fr) Cuve à circulation permettant de réduire les micro-organismes viables dans un fluide
TWM603021U (zh) 滅菌模組
De Oro et al. UV dose investigation for imersed lamp purifier for electronic ballast UV lamps design

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17784921

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17784921

Country of ref document: EP

Kind code of ref document: A1